diff --git a/src/engine.c b/src/engine.c
index 5b39d5243b248b4c7527cc557320616720dd287e..2a05248cc42721335c31fbb6bc15ba9568335a11 100644
--- a/src/engine.c
+++ b/src/engine.c
@@ -6532,7 +6532,7 @@ void engine_dump_index(struct engine *e) {
 
   clocks_gettime(&time2);
   if (e->verbose)
-    message("writing particle properties took %.3f %s.",
+    message("writing particle indices took %.3f %s.",
             (float)clocks_diff(&time1, &time2), clocks_getunit());
 #else
   error("Logger disabled");